Ftp客户端无法使用IPV6传输文件

  • Z时代
  • 2024-01-10
  • 分类：问答

我正在编写通过ftp发送文件的Java代码，如下所示。我使用的服务器是本地主机上的FileZilla Server软件。Ftp客户端无法使用IPV6传输文件

public static void main(String[] args) { 
    try { 
     String host = "fe80::21a:a0ff:fe8d:fe63"; //No problem if ipv4 
     int port = 1998; 
     String username = "joe"; 
     String password = "123"; 
     String directory = "D:/ftp_share"; 
     File fileToTransfer = new File("D:/RND/samplefile.txt"); 
     String fileName = fileToTransfer.getName(); 
     FTPClient ftp = new FTPClient(); 
     ftp.connect(host, port); 
     ftp.login(username, password); 
     FileInputStream in = new FileInputStream(fileToTransfer); 
     if (!(directory == null || "".equals(directory))) { 
      ftp.changeWorkingDirectory(directory); 
     } 
     ftp.setFileType(FTP.BINARY_FILE_TYPE); 
     ftp.appendFile(fileName, (InputStream) in); 
     System.out.println("File " + fileName + " succesfully sent via ftp to " + host + " at port " + port); 
    } catch (SocketException ex) { 
     Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); 
    } catch (IOException ex) { 
     Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex); 
    } 
}

问题是我只能发送通过IPV4但不使用IPv6。在Java exeption是

org.apache.commons.net.ftp.FTPConnectionClosedException: FTP response 421 received. Server closed connection. 
    at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:360) 
    at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:290) 
    at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:474) 
    at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:547) 
    at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:680) 
    at org.apache.commons.net.ftp.FTPClient.__storeFile(FTPClient.java:551) 
    at org.apache.commons.net.ftp.FTPClient.appendFile(FTPClient.java:1765) 
    at rnd.Main.main(Main.java:44)

，并在文件服务器吉拉的消息是

(000018)10/18/2011 14:46:39 PM - (not logged in) (fe80::21a:a0ff:fe8d:fe63)> Connected, sending welcome message... 
(000018)10/18/2011 14:46:39 PM - (not logged in) (fe80::21a:a0ff:fe8d:fe63)> 220-FileZilla Server version 0.9.39 beta 
(000018)10/18/2011 14:46:39 PM - (not logged in) (fe80::21a:a0ff:fe8d:fe63)> 220-written by Tim Kosse ([email protected]) 
(000018)10/18/2011 14:46:39 PM - (not logged in) (fe80::21a:a0ff:fe8d:fe63)> 220 Please visit http://sourceforge.net/projects/filezilla/ 
(000018)10/18/2011 14:46:39 PM - (not logged in) (fe80::21a:a0ff:fe8d:fe63)> USER joe 
(000018)10/18/2011 14:46:39 PM - (not logged in) (fe80::21a:a0ff:fe8d:fe63)> 331 Password required for joe 
(000018)10/18/2011 14:46:39 PM - (not logged in) (fe80::21a:a0ff:fe8d:fe63)> PASS *** 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> 230 Logged on 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> CWD D:/RND/ftp_share 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> 550 CWD failed. "/D:/RND/ftp_share": directory not found. 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> TYPE I 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> 200 Type set to I 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> EPRT |1|0.0.0.0|2885| 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> 200 Port command successful 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> APPE jawapannya.txt 
(000018)10/18/2011 14:46:39 PM - joe (fe80::21a:a0ff:fe8d:fe63)> 421 Can't create socket

可以在任何1和帮助，如何使人们有可能使用IPv6发送。

注：我已经在我的本地IPV6。

回答：

该EPRT命令是虚假的，它正在请求服务器连接到未指定的IPv4地址。

它可能更适用于本地主机地址:: 1或全局地址，而不是链接本地地址。

以上是 Ftp客户端无法使用IPV6传输文件 的全部内容， 来源链接： utcz.com/qa/261673.html

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